package com.liwei.lwmail.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.liwei.common.constant.ProductConstant;
import com.liwei.lwmail.product.dao.AttrAttrgroupRelationDao;
import com.liwei.lwmail.product.dao.AttrGroupDao;
import com.liwei.lwmail.product.dao.CategoryDao;
import com.liwei.lwmail.product.entity.AttrAttrgroupRelationEntity;
import com.liwei.lwmail.product.entity.AttrGroupEntity;
import com.liwei.lwmail.product.entity.CategoryEntity;
import com.liwei.lwmail.product.service.CategoryService;
import com.liwei.lwmail.product.vo.AttrGroupRelationVo;
import com.liwei.lwmail.product.vo.AttrRespVo;
import com.liwei.lwmail.product.vo.AttrVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.liwei.common.utils.PageUtils;
import com.liwei.common.utils.Query;

import com.liwei.lwmail.product.dao.AttrDao;
import com.liwei.lwmail.product.entity.AttrEntity;
import com.liwei.lwmail.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    private AttrAttrgroupRelationDao relationDao;

    @Autowired
    private AttrGroupDao attrGroupDao;

    @Autowired
    private CategoryDao categoryDao;

    @Autowired
    private CategoryService categoryService;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String attrType) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equals(attrType)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        if(catelogId!=0){
            queryWrapper.eq("catelog_id",catelogId);

        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
        PageUtils pageUtils = new PageUtils(page);

        List<AttrEntity> records = page.getRecords();

        List<AttrRespVo> attrRespVoList = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            //设置分类和分组的名字
            if("base".equals(attrType)){
                AttrAttrgroupRelationEntity relationEntity = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (relationEntity != null && relationEntity.getAttrGroupId() != null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relationEntity.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }

            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }

            return attrRespVo;
        }).collect(Collectors.toList());

        pageUtils.setList(attrRespVoList);
        return pageUtils;
    }

    @Transactional
    @Override
    public void saveAttr(AttrVo attr) {
        //保存基本数据
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.save(attrEntity);

        //保存关联关系
        if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId()!=null){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(relationEntity);
        }

    }

    @Cacheable(cacheNames = "attr",key = "'attrinfo:'+#a0")
    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);

        if (attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
//设置分组信息
            AttrAttrgroupRelationEntity relationEntity = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if ((relationEntity!=null)){
                respVo.setAttrGroupId(relationEntity.getAttrGroupId());

                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relationEntity.getAttrGroupId());
                if(attrGroupEntity!=null)
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
            }
        }

        //设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if (categoryEntity!=null)
        respVo.setCatelogName(categoryEntity.getName());

        BeanUtils.copyProperties(attrEntity,respVo);

        return respVo;
    }

    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        //修改基本信息
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);

        if ((attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode())){
            //修改分组关联
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if ((count>0)){
                relationDao.update(relationEntity, new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else {
                relationDao.insert(relationEntity);
            }
        }
    }

    /**
     * 根据分组id，找到关联的属性
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getAttrRelation(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<Long> attrIds = relationEntities.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        if(attrIds == null || attrIds.size()==0){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>) attrEntities;
    }

    @Override
    public void deleteRelation(List<AttrGroupRelationVo> vos) {
        //relationDao.delete(new QueryWrapper<>().eq("attr_id",).eq("attr_group_id",));

        List<AttrAttrgroupRelationEntity> collect = vos.stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());

        relationDao.deleteBatchRelation(collect);
    }

    /**
     * 获取当前分组没有关联的所有属性
     * @param attrgroupId
     * @param params
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Long attrgroupId, Map<String, Object> params) {
        //1.当前分组只能关联自己所属分类里面的属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();

        //2.当前分组只能关联别的分组没有引用的属性
            //当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> list = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());
        if ((list!=null)){
            //这些分组关联的属性
            List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", list));
            List<Long> attrIds = relationEntities.stream().map(item -> {
                return item.getAttrId();
            }).collect(Collectors.toList());

            //从当前分类的所有属性中移除这些属性
            QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
            if (attrIds != null && attrIds.size() > 0){
                wrapper.notIn("attr_id", attrIds);
            }
            String key = (String) params.get("key");
            if (!StringUtils.isEmpty(key)){
                wrapper.and((w)->{
                    w.eq("attr_id",key).or().like("attr_name",key);
                });
            }
            IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
            PageUtils pageUtils = new PageUtils(page);
            return pageUtils;
        }

        return null;

    }

    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {
        //SELECT * FROM pms_attr WHERE attr_id IN (attrIds) AND search_type = 1
        return this.baseMapper.selectSearchAttrIds(attrIds);
    }


}